A well-known New Zealand wedding blogger has revealed how her desire to fit her wedding dress stopped her from having children.

She Said Yes blogger Megan Hutchison has, in a heartfelt post, told how dieting so she could wear a US size 2 wedding dress - the equivalent of a NZ size 6 - is why she and her husband have not been able to conceive in two years.

"Despite medical advice to the contrary, I knowingly treated my body in such a way that it responded with an inability to have children. I ended up with amenorrhoea and infertility – for three years. The amenorrhoea ended today. Hopefully, fertility will be the next step, and Blair and I will be able to have children in the next couple of years."

Almost two years on, she is 6 or 7kg heavier than her wedding day and 10kg heavier than her lowest weight. She said her wedding dress is a reminder of what she did to her body.

She currently sees a psychologist and endocrinologist, Dr Stella Milsom, at Greenlane Hospital. Milsom is an expert and has written articles on amenorrhoea.

"It may sound ridiculous to you, but I wish I could try it on for my second wedding anniversary in a week, and sit in it while I eat the last few slices of the wedding cake still saved. But I can't. This is not a pity party. This isn't all about me, or my weight, my health, my wedding dress or just my fertility. I do not deserve anybody's pity – I freely admit how irresponsible and selfish this was," she wrote.

While the effect of following a wedding-day diet was still taking its toll on her, Hutchison told theHeraldshe finally decided to share her story to raise awareness around it.

"I feel like I have a responsibility to all the women who might find themselves in this position. Problems like these are all too common, as Stella Milsom's article describes, yet that was in 2011 and I don't think I've ever come across anyone else talking about this before. So, I felt I had to say something, now that I'm (hopefully, fingers crossed) recovering."